<!-- 课程中心 - 课程列表  -->
<template>
    <!-- 搜索工作栏 -->
    <ContentWrap>
        <el-form ref="queryFormRef" :inline="true" :model="queryParams" class="-mb-15px" label-width="68px">
            <el-form-item label="课程名称" prop="name">
                <el-input v-model="queryParams.name" class="!w-240px" clearable placeholder="请输入课程名称"
                    @keyup.enter="handleQuery" />
            </el-form-item>
            <el-form-item label="课程分类" prop="categoryId">
                <el-cascader v-model="queryParams.categoryId" :options="categoryList" :props="defaultProps"
                    class="w-1/1" clearable filterable placeholder="请选择课程分类" />
            </el-form-item>
            <el-form-item label="创建时间" prop="createTime">
                <el-date-picker v-model="queryParams.createTime"
                    :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]" class="!w-240px"
                    end-placeholder="结束日期" start-placeholder="开始日期" type="daterange"
                    value-format="YYYY-MM-DD HH:mm:ss" />
            </el-form-item>
            <el-form-item>
                <el-button @click="handleQuery">
                    <Icon class="mr-5px" icon="ep:search" />
                    搜索
                </el-button>
                <el-button @click="resetQuery">
                    <Icon class="mr-5px" icon="ep:refresh" />
                    重置
                </el-button>
                <el-button v-hasPermi="['product:spu:create']" plain type="primary" @click="openForm(undefined)">
                    <Icon class="mr-5px" icon="ep:plus" />
                    新增
                </el-button>
                <!-- <el-button v-hasPermi="['product:spu:export']" :loading="exportLoading" plain type="success"
                    @click="handleExport">
                    <Icon class="mr-5px" icon="ep:download" />
                    导出
                </el-button> -->
            </el-form-item>
        </el-form>
    </ContentWrap>

    <!-- 列表 -->
    <ContentWrap>
        <el-tabs v-model="queryParams.tabType" @tab-click="handleTabClick">
            <el-tab-pane v-for="item in tabsData" :key="item.type" :label="item.name + '(' + item.count + ')'"
                :name="item.type" />
        </el-tabs>
        <el-table v-loading="loading" :data="list">
            <!-- <el-table-column type="expand">
                <template #default="{ row }">
                    <el-form class="spu-table-expand" label-position="left">
                        <el-row>
                            <el-col :span="24">
                                <el-row>
                                    <el-col :span="8">
                                        <el-form-item label="课程标签:">
                                            <span>{{ formatCategoryName(row.categoryId) }}</span>
                                        </el-form-item>
                                    </el-col>
                                    <el-col :span="8">
                                        <el-form-item label="训练场地:">
                                            <span>{{ fenToYuan(row.marketPrice) }}</span>
                                        </el-form-item>
                                    </el-col>
                                </el-row>
                            </el-col>
                        </el-row>
                        <el-row>
                            <el-col :span="24">
                                <el-row>
                                    <el-col :span="8">
                                        <el-form-item label="浏览量:">
                                            <span>{{ row.browseCount }}</span>
                                        </el-form-item>
                                    </el-col>
                                </el-row>
                            </el-col>
                        </el-row>
                    </el-form>
                </template>
            </el-table-column> -->
            <el-table-column label="课程编号" min-width="140" prop="id" />
            <el-table-column label="课程名称" min-width="300">
                <template #default="{ row }">
                    <div class="flex">
                        <el-image fit="cover" :src="row.picUrl" class="flex-none w-50px h-50px"
                            @click="imagePreview(row.picUrl)" />
                        <div class="ml-4 overflow-hidden">
                            <el-tooltip effect="dark" :content="row.name" placement="top">
                                <div>
                                    {{ row.name }}
                                </div>
                            </el-tooltip>
                        </div>
                    </div>
                </template>
            </el-table-column>
            <el-table-column align="center" label="课程价格" min-width="160" prop="price">
                <template #default="{ row }"> ¥ {{ fenToYuan(row.price) }}</template>
            </el-table-column>
            <!-- <el-table-column align="center" label="销量" min-width="90" prop="salesCount" /> -->
            <!-- <el-table-column align="center" label="库存" min-width="90" prop="stock" /> -->
            <el-table-column align="center" label="排序" min-width="70" prop="sort" />
            <el-table-column align="center" label="销售状态" min-width="80">
                <template #default="{ row }">
                    <template v-if="row.status >= 0">
                        <el-switch v-model="row.status" :active-value="1" :inactive-value="0" active-text="上架"
                            inactive-text="下架" inline-prompt @change="handleStatusChange(row)" />
                    </template>
                    <template v-else>
                        <el-tag type="info">回收站</el-tag>
                    </template>
                </template>
            </el-table-column>
            <el-table-column :formatter="dateFormatter" align="center" label="创建时间" prop="createTime" width="180" />
            <el-table-column align="center" fixed="right" label="操作" min-width="200">
                <template #default="{ row }">
                    <el-button link type="primary" @click="openDetail(row.id)"> 详情 </el-button>
                    <el-button v-hasPermi="['product:spu:update']" link type="primary" @click="openForm(row.id)">
                        修改
                    </el-button>
                    <!-- <template v-if="queryParams.tabType === 1">
                        <el-button v-hasPermi="['product:spu:delete']" link type="danger" @click="handleDelete(row.id)">
                            删除
                        </el-button>
                    </template> -->
                    <template v-if="queryParams.tabType === 4">
                        <el-button v-hasPermi="['product:spu:delete']" link type="danger" @click="handleDelete(row.id)">
                            删除
                        </el-button>
                        <el-button v-hasPermi="['product:spu:update']" link type="primary"
                            @click="handleStatus02Change(row, ProductSpuStatusEnum.DISABLE.status)">
                            恢复
                        </el-button>
                    </template>
                    <template v-else>
                        <el-button v-hasPermi="['product:spu:update']" link type="danger"
                            @click="handleStatus02Change(row, ProductSpuStatusEnum.RECYCLE.status)">
                            回收
                        </el-button>
                    </template>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页 -->
        <Pagination v-model:limit="queryParams.pageSize" v-model:page="queryParams.pageNo" :total="total"
            @pagination="getList" />
    </ContentWrap>
</template>
<script lang="ts" setup>
import { TabsPaneContext } from 'element-plus'
import { createImageViewer } from '@/components/ImageViewer'
import { dateFormatter } from '@/utils/formatTime'
import { defaultProps, handleTree, treeToString } from '@/utils/tree'
import { ProductSpuStatusEnum } from '@/utils/constants'
import { fenToYuan } from '@/utils'
import download from '@/utils/download'
import * as ProductSpuApi from '@/api/mall/product/spu'
import * as ProductCategoryApi from '@/api/mall/product/category'

defineOptions({ name: 'ProductSpu' })

const message = useMessage() // 消息弹窗
const { t } = useI18n() // 国际化
const { push } = useRouter() // 路由跳转

const loading = ref(false) // 列表的加载中
const exportLoading = ref(false) // 导出的加载中
const total = ref(0) // 列表的总页数
const list = ref<ProductSpuApi.Spu[]>([]) // 列表的数据
// tabs 数据
const tabsData = ref([
    {
        name: '已上架',
        type: 0,
        count: 0
    },
    {
        name: '已下架',
        type: 1,
        count: 0
    },
    {
        name: '已售罄',
        type: 2,
        count: 0
    },
    {
        name: '警戒库存',
        type: 3,
        count: 0
    },
    {
        name: '回收站',
        type: 4,
        count: 0
    }
])

const queryParams = ref({
    pageNo: 1,
    pageSize: 10,
    tabType: 0,
    name: '',
    categoryId: undefined,
    createTime: undefined
}) // 查询参数
const queryFormRef = ref() // 搜索的表单Ref

/** 查询列表 */
const getList = async () => {
    loading.value = true
    try {
        const data = await ProductSpuApi.getSpuPage(queryParams.value)
        list.value = data.list
        total.value = data.total
    } finally {
        loading.value = false
    }
}

/** 切换 Tab */
const handleTabClick = (tab: TabsPaneContext) => {
    queryParams.value.tabType = tab.paneName as number
    getList()
}

/** 获得每个 Tab 的数量 */
const getTabsCount = async () => {
    const res = await ProductSpuApi.getTabsCount()
    for (let objName in res) {
        tabsData.value[Number(objName)].count = res[objName]
    }
}

/** 添加到仓库 / 回收站的状态 */
const handleStatus02Change = async (row: any, newStatus: number) => {
    try {
        // 二次确认
        const text = newStatus === ProductSpuStatusEnum.RECYCLE.status ? '加入到回收站' : '恢复到仓库'
        await message.confirm(`确认要"${row.name}"${text}吗？`)
        // 发起修改
        await ProductSpuApi.updateStatus({ id: row.id, status: newStatus })
        message.success(text + '成功')
        // 刷新 tabs 数据
        await getTabsCount()
        // 刷新列表
        await getList()
    } catch { }
}

/** 更新上架/下架状态 */
const handleStatusChange = async (row: any) => {
    try {
        // 二次确认
        const text = row.status ? '上架' : '下架'
        await message.confirm(`确认要${text}"${row.name}"吗？`)
        // 发起修改
        await ProductSpuApi.updateStatus({ id: row.id, status: row.status })
        message.success(text + '成功')
        // 刷新 tabs 数据
        await getTabsCount()
        // 刷新列表
        await getList()
    } catch {
        // 异常时，需要重置回之前的值
        row.status =
            row.status === ProductSpuStatusEnum.DISABLE.status
                ? ProductSpuStatusEnum.ENABLE.status
                : ProductSpuStatusEnum.DISABLE.status
    }
}

/** 删除按钮操作 */
const handleDelete = async (id: number) => {
    try {
        // 删除的二次确认
        await message.delConfirm()
        // 发起删除
        await ProductSpuApi.deleteSpu(id)
        message.success(t('common.delSuccess'))
        // 刷新tabs数据
        await getTabsCount()
        // 刷新列表
        await getList()
    } catch { }
}

/** 课程图预览 */
const imagePreview = (imgUrl: string) => {
    createImageViewer({
        urlList: [imgUrl]
    })
}

/** 搜索按钮操作 */
const handleQuery = () => {
    getList()
}

/** 重置按钮操作 */
const resetQuery = () => {
    queryFormRef.value.resetFields()
    handleQuery()
}

/** 新增或修改 */
const openForm = (id?: number) => {
    // 修改
    if (typeof id === 'number') {
        push({ name: 'ProductSpuEdit', params: { id } })
        return
    }
    // 新增
    push({ name: 'ProductSpuAdd' })
}

/** 查看课程详情 */
const openDetail = (id: number) => {
    push({ name: 'ProductSpuDetail', params: { id } })
}

/** 导出按钮操作 */
const handleExport = async () => {
    try {
        // 导出的二次确认
        await message.exportConfirm()
        // 发起导出
        exportLoading.value = true
        const data = await ProductSpuApi.exportSpu(queryParams)
        download.excel(data, '课程列表.xls')
    } catch {
    } finally {
        exportLoading.value = false
    }
}

/** 获取分类的节点的完整结构 */
const categoryList = ref() // 分类树
const formatCategoryName = (categoryId: number) => {
    return treeToString(categoryList.value, categoryId)
}

/** 激活时 */
onActivated(() => {
    getList()
})

/** 初始化 **/
onMounted(async () => {
    await getTabsCount()
    await getList()
    // 获得分类树
    const data = await ProductCategoryApi.getCategoryList({})
    categoryList.value = handleTree(data, 'id', 'parentId')
})
</script>
<style lang="scss" scoped>
.spu-table-expand {
    padding-left: 42px;

    :deep(.el-form-item__label) {
        width: 82px;
        font-weight: bold;
        color: #99a9bf;
    }
}
</style>
